All watertight doors are available in aluminum, steel, stainless steel or a combination of these metals Meet IMO, SOLAS requirements Normal pump unit can be separately installed beside the door or other position. Application: used for engine&steering gear rooms with watertight bulkhead Type: Integrated / Normal Option: A0 / A60 Class Fireproof Material: steel/aluminum Max. Pressure:0.1Mpa Available certificates: GL, DNV, CCS, BV, ABS, LR, KR, RS, etc. Available in natural finish, primed or coated in accordance with client request. Sizes and colors will customize according to your requirements. Wooden cases, plymax cases.